How many solutions would a quadratic equation have if the discriminant is 12? brainliest to the first correct answer

Answer:

=-1

Step-by-step explanation:

−

1

0

+

=

−

1

2

{\color{#c92786}{x}}-10+{\color{#c92786}{x}}=-12

x−10+x=−12

2

−

1

0

=

−

1

2

Answer:

10.285 miles

Step-by-step explanation:

Given that:

Upstream travel time = 5 hours

Return trip travel time = 3.6 hours

Let upstream travel speed = x mph

Downstream travel speed = x + 4 mph

Distance = speed * time

Upstream distance = x * 5 = 5x

Downstream distance = (x + 4) * 3.6

5x = (x + 4) * 3.6

5x = 3.6x + 14.4

5x - 3.6x = 14.4

1.4x = 14.4

x = 10.285714

x = 10.285 miles

Answer:

Step-by-step explanation:

The coefficient is the number part.

Answer:

9

Step-by-step explanation:

Correct me if i'm wrong

Answer:

vvvvvvvvvvvvvvvvvvvvvv is equal to 65654

Step-by-step explanation:

Answer:

2.1/3

3.7/11

Step-by-step explanation:

Answer:

(2)  1/3

(3)  7/11

Answer:

154

Step-by-step explanation:

Answer:

π/10

Step-by-step explanation:

Irrational Numbers

The irrational numbers are identified because, unlike rational numbers, they cannot be expressed as fractions, i.e., as the result of a division between two integers.

If a number is expressed with a limited number of decimals, it's always possible to write it as a rational.

For example, number 1.2319 can be written as 12319/10000.

Even if the number has an unlimited decimal expression, it could be expressed as rational if the decimal part is periodic. Number 2.33333... is rational because it's equivalent to the fraction 7/3.

We need to find an irrational number between 0.3101 and 0.3333.

Any number within the range with unlimited non-periodic decimals will do:

0.3189567363.... is a good example.

We'll choose the number

π/10 since π is a known irrational number and π/10=0.3141592... lies in the given interval.

Answer:

[tex]the \: number \: is \: 96[/tex]

Explanation:

[tex]let \: the \: number \: be \: = \: x [/tex]

[tex] \frac{x}{2} + x = 144[/tex]

[tex]2( \frac{x}{2} ) + 2(x) = 2(144)[/tex]

[tex]x + 2x = 288[/tex]

[tex]3x = 288[/tex]

[tex] \frac{3x}{3} = \frac{288}{3} [/tex]

[tex]x = 96[/tex]

Answer:

16>-15

Step-by-step explanation:

16>-f, if f = 15 - given equation

f= 15, so  subsitute 15 in -f. This gives us 16>-15 because, f = 15, and there was a minus making is negative.

Answer:

Step-by-step explanation:

cost is 20 fee + .25 per mile.

c =20+0.25m

Answer:

D.) y < -1/5x + 1

Step-by-step explanation:

I sense that you're in a rush, so I'll spare you the lecture, haha.. Just trust.

Answer: True

Step-by-step explanation:

Answer:

Both Yes

Step-by-step explanation:

both have a 90 degree angle

Answer:

$103.75

Step-by-step explanation:

$1,245 devide by 12

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.

Step-by-step explanation:

Here it is.

Constant of proportionality = 4

Answer:

(49x + 18) + 49y

Step-by-step explanation:

you woud place the variable (letter) representing the number of weeks they worked by the amount they get paid each week then, you would add to whoever gets an extra amount of money, the y - intercept or in this case the extra 18 dollars one of them gets paid to whoever got paid that amount of extra money. :)

Answer:

C( 49x + 18 + 49y)

Step-by-step explanation: I GOT 100% ON MY TEST

Step-by-step explanation:

set that width is x

and length become 2X

P = 2×( X+ 2X )

200 = 6 X

X=33. 3

width = 33.3 inch

length = 66. 6 inch

Answer:

k = 9

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to 8

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 1, 1) and (x₂, y₂ ) = (0, k)

m = [tex]\frac{k-1}{0+1}[/tex] = k - 1 = 8 ( add 1 to both sides )

k = 9

The best and only represents the equation y = 5x – 8 is done in the table C.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

Given a linear equation y = 5x - 8

As we can see that this equation has a slope of 5 and a y-intercept of -8

To ease the process we will calculate the value of y at different values of x:

For x = 0 ,

y = 5 * 0 - 8 = -8

For x = 1

Y = 5-8 = -3

For x = 2

Y = 5*2 - 8

y = 2

For x = 3

y = 5*3 -8

y = 7

for x = 4

y = 20 *8

y = 12

Since only table C is satisfying the situation.

therefore, The best and only represents the equation y = 5x – 8 is done in table C.

Learn more about Linear equations here:

https://brainly.com/question/11897796

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Complete Question:

Answer: -279

Step-by-step explanation:

-129-150= -279

to check

-279+150= -129

Answer:

C

Step-by-step explanation:

Answer:

D.)  y=5x+14

Step-by-step explanation:

point slope form: y-y1=m(x-x1)

y1=4, m=5, x1=-2

y-4=5(x+2)

distribute 5

y-4=5x+10

add 4 to both sides

y=5x+14

Answer:

the only thing you need to do is to divide the speed with the distance

Answer:

$108

Step-by-step explanation:

From the above question, we have the proportion:

Company A/Company B

= $9/$2 = x/x24

The next step is : We Cross Multiply

2x = $24 × $9

x = $24 × $9/2

x = $108

Therefore, she will invest in $108 company A if she invests $24 in company B.

Answer:

The rate of change is 1$

Step-by-step explanation:

Jose is getting one dollar a day (the only thing in the equation that is changing)

Answer:

That's the simplest I could do, sorry

Answer:

The answer is x=-1/7

Step-by-step explanation:

11-6x-7-8x=6

Combine like terms

11-7-6x-8x=6

4-14x=6

4-4-14x=6-4

-14x=2

To find x divide both sides by -14

-14x/-14=2/-14

x=-1/7

Answer: A

Step-by-step explanation:

Use pythagorean thm to solve for the hypotenuse. so [tex]\sqrt{36+144}[/tex] is 13.4

Answer:

5 and 5

Step-by-step explanation:

5 divided by 5 is 1

5 plus 5 is 10

Answer:

r^11

Step-by-step explanation: